Publications by authors named "KRISS J"

The Advisory Committee on Immunization Practices (ACIP) recommends annual influenza and COVID-19 vaccination for all persons aged ≥6 months, including adults aged ≥18 years. ACIP also recommends a single lifetime dose of respiratory syncytial virus (RSV) vaccine for adults aged ≥75 years and for those aged 60-74 years who are at increased risk for severe RSV disease. Data from the National Immunization Survey-Adult COVID Module, a random-digit-dialed cellular telephone survey of U.

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In the United States, states and local jurisdictions set vaccination requirements for school attendance, conditions and procedures for exemptions from these requirements, grace periods for submitting documentation, and provisional enrollment for students who need more time to be vaccinated. States annually report data to CDC on the number of children in kindergarten who meet, are exempt from, or are in the process of meeting requirements. Data reported by 49 states and the District of Columbia (DC) for the 2023-24 school year were used for national- and state-level estimates of the following measures: complete vaccination with required doses of measles, mumps, and rubella vaccine (MMR), diphtheria, tetanus, and acellular pertussis vaccine (DTaP), poliovirus vaccine (polio), and varicella vaccine (VAR); exemptions from vaccination; and school attendance while meeting requirements.

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  • Childhood vaccination significantly contributes to public health by boosting life expectancy, lowering healthcare costs, and minimizing preventable diseases.
  • Data from U.S.-affiliated Pacific Islands shows mixed success in meeting vaccination goals of 90% coverage by age 24 months, with substantial variability among different regions.
  • As of June 2024, there has been an overall increase in vaccination coverage across jurisdictions, highlighting the need for targeted efforts to address delays and improve vaccination strategies in specific areas.
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  • The COVID-19 pandemic has had a more significant negative impact on the health of food system (FS) essential workers compared to other worker categories, with notable disparities among different FS subpopulations.
  • An analysis of data from over 151,000 essential worker respondents revealed that FS workers had lower vaccination rates and requirements for vaccines at work or school compared to non-food system (NFS) workers, despite similar experiences during the vaccination process.
  • The study highlighted variations in vaccination intent and attitudes among unvaccinated FS workers; specifically, food manufacturing and beverage store workers were more open to vaccination, while those in agriculture and forestry showed more reluctance, emphasizing the need for targeted health initiatives.
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  • * HPV vaccination was introduced in the U.S.-affiliated Pacific Islands (USAPI) from 2007-2016, mainly through school programs, and recent data (2013-2023) shows varying vaccination initiation rates among adolescent girls, from 58% in Palau to 97% in the Northern Mariana Islands.
  • * As of December 2023, the Northern Mariana Islands exceeds the WHO's 90% vaccination goal, while American Samoa is on track; analyzing
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  • - The Advisory Committee on Immunization Practices recommends influenza and COVID-19 vaccines for everyone aged 6 months and older, while RSV vaccines are advised for those aged 60 and above and pregnant individuals.
  • - As of December 9, 2023, vaccination coverage among adults shows that 42.2% received the influenza vaccine, 18.3% got the updated COVID-19 vaccine, and 17.0% of those aged 60 and over received the RSV vaccine, with coverage differing by demographics.
  • - Approximately 27% of adults aged 18+ and 53% of adults aged 60+ expressed uncertainty or intention to get vaccinated against these viruses, indicating that stronger recommendations from healthcare providers could
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  • * A study analyzed data from over a million respondents to understand the relationship between healthcare discrimination experiences and COVID-19 vaccination status and intent, revealing notable disparities among different racial and ethnic groups.
  • * Notably, 10.7% of Black respondents reported discrimination in healthcare, which corresponded with a higher likelihood of being unvaccinated, indicating that improving healthcare equity could help reduce health disparities.
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As of December 31, 2022, a total of 29,939 monkeypox (mpox) cases* had been reported in the United States, 93.3% of which occurred in adult males. During May 10-December 31, 2022, 723,112 persons in the United States received the first dose in a 2-dose mpox (JYNNEOS) vaccination series; 89.

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  • From May 2022 to January 2023, around 30,000 monkeypox cases were reported in the U.S. and over 86,000 globally, prompting recommendations for the JYNNEOS vaccine for those at increased risk.
  • The FDA authorized an Emergency Use Authorization (EUA) to allow the vaccine to be given intradermally, using about one-fifth of the subcutaneous dose while still generating an effective immune response.
  • As of January 31, 2023, over 1.1 million doses of JYNNEOS were administered, achieving approximately 36.7% first dose and 22.7% full vaccination coverage among at-risk individuals, with continued vaccination efforts necessary to prevent potential
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COVID-19 vaccine booster doses are safe and maintain protection after receipt of a primary vaccination series and reduce the risk for serious COVID-19-related outcomes, including emergency department visits, hospitalization, and death (1,2). CDC recommended an updated (bivalent) booster for adolescents aged 12-17 years and adults aged ≥18 years on September 1, 2022 (3). The bivalent booster is formulated to protect against the Omicron BA.

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  • A study investigated why many U.S. adults remain unvaccinated against COVID-19, highlighting behavioral and social factors that influence vaccine uptake across different regions.
  • Among over 255,000 respondents, 76% reported receiving at least one vaccine dose, with higher rates in older adults, females, and Asian non-Hispanic individuals.
  • Key drivers for vaccination included feelings of regret about not getting vaccinated, perceived risks of COVID-19, and confidence in vaccine safety, indicating that targeted interventions could improve vaccination rates.
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Introduction: Focusing on subpopulations that express the intention to receive a COVID-19 vaccination but are unvaccinated may improve the yield of COVID-19 vaccination efforts.

Methods: A nationally representative sample of 789,658 U.S.

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  • By the end of 2021, 15% of U.S. adults were unvaccinated against COVID-19, prompting a study using K-means clustering to categorize these individuals based on behavioral and social factors influencing their vaccination status.
  • The study analyzed data from over 187,000 participants, identifying three clusters of unvaccinated adults: "Reachable," "Less reachable," and "Least reachable," with the latter group showing the lowest concern about COVID-19 and the least vaccine confidence.
  • The findings can assist public health officials and community leaders in creating targeted vaccination campaigns and inform policymakers about interventions suited for different unvaccinated subgroups.
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The Centers for Disease Control and Prevention recommends a COVID-19 vaccine booster dose for all persons >18 years of age. We analyzed data from the National Immunization Survey-Adult COVID Module collected during February 27-March 26, 2022 to assess COVID-19 booster dose vaccination coverage among adults. We used multivariable logistic regression analysis to assess factors associated with vaccination.

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As of October 28, 2022, a total of 28,244* monkeypox (mpox) cases have been reported in the United States during an outbreak that has disproportionately affected gay, bisexual, and other men who have sex with men (MSM) (1). JYNNEOS vaccine (Modified Vaccinia Ankara vaccine, Bavarian Nordic), administered subcutaneously as a 2-dose (0.5 mL per dose) series (with doses administered 4 weeks apart), was approved by the Food and Drug Administration (FDA) in 2019 to prevent smallpox and mpox disease (2); an FDA Emergency Use Authorization issued on August 9, 2022, authorized intradermal administration of 0.

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  • This study investigates how the reasons for not getting vaccinated against COVID-19 differ across various regions of the U.S., using data from nearly 532,000 adults between May and December 2021.
  • The research found that by December 2021, 79.3% of adults had received at least one dose of the vaccine, with the Southeast and Midwest having the highest rates of unvaccinated individuals who were either undecided or inclined to get vaccinated.
  • Key factors affecting vaccination rates included varying levels of confidence in the vaccine's safety and importance, suggesting that tailored outreach efforts may be necessary to address these regional disparities.
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Vaccination with JYNNEOS vaccine (Modified Vaccinia Ankara vaccine, Bavarian Nordic) to prevent monkeypox commenced shortly after confirmation of the first monkeypox case in the current outbreak in the United States on May 17, 2022 (1). To date, more than 27,000 cases have been reported across all 50 states, the District of Columbia (DC), and Puerto Rico.* JYNNEOS vaccine is licensed by the Food and Drug Administration (FDA) as a 0.

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  • Employer vaccination requirements significantly increased COVID-19 vaccination rates among healthcare personnel (HCP), with 90.5% of those subject to these requirements being vaccinated compared to only 73.3% of those without.
  • The study utilized a nationally representative sample of US adults, analyzing responses from HCP regarding their vaccination status and attitudes, focusing on how employer requirements influenced these factors.
  • Findings indicated that vaccination requirements helped reduce disparities in vaccine uptake among various sociodemographic groups, particularly among younger HCP, those with lower education levels, and individuals living in poverty or without insurance.
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  • Many individuals with medical conditions face higher risks of severe illness from COVID-19, prompting a study on their vaccination rates in the U.S.
  • The study analyzed data from the National Immunization Survey, revealing that 81.8% of adults with medical conditions had received at least one vaccine dose, compared to 70.3% of those without conditions.
  • A key finding was that provider recommendations significantly influenced vaccination rates, highlighting the need for better access and confidence in obtaining the vaccine among unvaccinated individuals with medical issues.
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  • - The National Immunization Survey Adult COVID Module conducted a phone survey from April 2021 to January 2022 to assess COVID-19 vaccination rates, intentions, and attitudes among different racial and ethnic groups.
  • - Foreign-born individuals showed higher vaccination rates (80.9%) and lower hesitancy (6.0%) compared to US-born individuals (72.6% and 15.8%), but some specific national origins, like Haitians and Somalis, had significantly lower vaccination rates.
  • - Spanish-speaking respondents had lower overall vaccination coverage but expressed higher intent to get vaccinated, highlighting the need for targeted interventions that address cultural and language-specific barriers in communities with lower vaccination rates.
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Background: Pregnant and postpartum women are at increased risk for severe illness from COVID-19. We assessed COVID-19 vaccination coverage, intent, and attitudes among women of reproductive age overall and by pregnancy status in the United States.

Methods: Data from the National Immunization Survey Adult COVID Module collected during April 22-November 27, 2021, were analyzed to assess COVID-19 vaccination (receipt of ≥1 dose), intent for vaccination, and attitudes towards vaccination among women aged 18-49 years overall and by pregnancy status (trying to get pregnant, currently pregnant, breastfeeding, and not trying to get pregnant or currently pregnant or breastfeeding).

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Some racial and ethnic minority groups have experienced disproportionately higher rates of COVID-19-related illness and mortality (1,2). Vaccination is highly effective in preventing severe COVID-19 illness and death (3), and equitable vaccination can reduce COVID-19-related disparities. CDC analyzed data from the National Immunization Survey Adult COVID Module (NIS-ACM), a random-digit-dialed cellular telephone survey of adults aged ≥18 years, to assess disparities in COVID-19 vaccination coverage by race and ethnicity among U.

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Lesbian, gay, bisexual, and transgender (LGBT) populations have higher prevalences of health conditions associated with severe COVID-19 illness compared with non-LGBT populations (1). The potential for low vaccine confidence and coverage among LGBT populations is of concern because these persons historically experience challenges accessing, trusting, and receiving health care services (2). Data on COVID-19 vaccination among LGBT persons are limited, in part because of the lack of routine data collection on sexual orientation and gender identity at the national and state levels.

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Vaccination is critical to controlling the COVID-19 pandemic, and health care providers play an important role in achieving high vaccination coverage (1). To examine the prevalence of report of a provider recommendation for COVID-19 vaccination and its association with COVID-19 vaccination coverage and attitudes, CDC analyzed data among adults aged ≥18 years from the National Immunization Survey-Adult COVID Module (NIS-ACM), a nationally representative cellular telephone survey. Prevalence of report of a provider recommendation for COVID-19 vaccination among adults increased from 34.

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